Cell Growth and Division PDF

CELL GROWTH AND DIVISION Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Which of the following is not a reason cells divide? a. The cell gets too big to process and transport nutrients....

CELL GROWTH AND DIVISION Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Which of the following is not a reason cells divide? a. The cell gets too big to process and transport nutrients. b. New cells are needed for growth. c. DNA cannot be copied quickly enough in large cells. d. Surface area-to-volume ratio becomes too large. ____ 2. The chromosome of a bacterium a. is wrapped around proteins. b. has a circular shape. c. occurs in multiple pairs within the cell. d. is found within the nucleus. ____ 3. The region of a chromosome where two sister chromatids are held together is called a a. spindle. c. nucleosome. b. centromere. d. centriole. ____ 4. Chromatids are a. dense patches within the nucleus. b. bacterial chromosomes. c. joined strands of duplicated genetic material. d. prokaryotic nuclei. ____ 5. When a chromosome condenses, a. a histone wraps around chromatin. b. beads form on the DNA double helix. c. its centromere splits. d. looped domains coil into a structure. ____ 6. In order to fit within a cell, DNA becomes more compact by a. breaking apart into separate genes. b. extending to form very long, thin molecules. c. wrapping tightly around histones. d. being enzymatically changed into a protein. ____ 7. In a bacterium, cell division takes place when a. its nucleus divides. b. the cell splits into two cells, one of which receives all of the DNA. c. the DNA is copied, a new cell wall forms between the DNA copies, and the cell splits into two cells. d. spindle fibers form. ____ 8. The phase of the cell cycle that occupies most of an average cell’s life is a. G1. c. G2. b. mitosis. d. S. ____ 9. What occurs after cytokinesis is completed? a. The cell organizes its microtubules. c. The cell enters G1.  b. The cell begins to replicate its DNA. d. The cell enters G2. ____ 10. Which of the following shows the correct sequence of the cell cycle? a. cytokinesis → mitosis → G1 → S → G2 b. S → G1 → G2 → mitosis → cytokinesis c. G1 → S → G2 → mitosis → cytokinesis d. mitosis → G1 → S→ G2 → cytokinesis ____ 11. Cells that are not dividing remain in the a. mitosis phase. c. first gap phase. b. synthesis phase. d. second gap phase. ____ 12. The synthesis (S) phase is characterized by a. DNA replication. b. cell division. c. replication of mitochondria and other organelles. d. the division of cytoplasm. ____ 13. 5 steps : the cell cycle :: a. 6 steps : prophase c. 3 steps : meiosis b. 9 steps : cytokinesis d. 4 steps : mitosis ____ 14. The first three phases of the cell cycle are collectively known as a. a gap. c. mitosis. b. telophase. d. interphase. ____ 15. cell growth : G1 :: a. mitosis : cytokinesis b. mitosis : meiosis c. mitochondria replication : synthesis phase d. DNA copying : synthesis phase ____ 16. metaphase : prophase :: a. G1 : mitosis c. mitosis : cytokinesis b. G2 : S d. S : mitosis ____ 17. Mitosis is the process by which a. microtubules are assembled. b. cytoplasm is divided. c. the nucleus is divided into two nuclei. d. the cell rests. ____ 18. A spindle fiber is a specialized form of a. microtubule. c. centriole. b. centrosome. d. chromosome. ____ 19. The phase of mitosis that is characterized by the arrangement of all chromosomes along the equator of the cell is called a. telophase. c. anaphase. b. metaphase. d. prophase. ____ 20. Refer to the illustration above. The cell in diagram 1 is in a. metaphase. c. anaphase. b. telophase. d. prophase. ____ 21. Refer to the illustration above. Mitosis begins with the stage shown in diagram a. 1. c. 3. b. 2. d. 4. ____ 22. Refer to the illustration above. The cell shown in diagram 5 is in a. metaphase. c. anaphase. b. telophase. d. prophase. ____ 23. Refer to the illustration above. Which of the following correctly indicates the order in which these events occur? a. A, B, C, D c. B, A, C, D b. C, B, A, D d. A, C, B, D ____ 24. Refer to the illustration above. During which stage do the centromeres divide? a. A c. C b. B d. D ____ 25. As a result of mitosis, each of the two new cells produced from the parent cell during cytokinesis a. receives a few chromosomes from the parent cell. b. receives an exact copy of all the chromosomes present in the parent cell. c. donates a chromosome to the parent cell. d. receives exactly half the chromosomes from the parent cell. ____ 26. Cytokinesis in plant cells involves the formation of a. a belt of protein threads. c. spindle fibers. b. a cell plate. d. centrioles. ____ 27. Which of the following statements is true? a. Prokaryotes divide by meiosis. b. Eukaryotes have circular chromosomes. c. Animal cells form new cell walls when they divide. d. Plant cells and animal cells have different strategies for cytokinesis. ____ 28. In eukaryotes, the cell cycle is controlled by a. proteins. c. lipids. b. carbohydrates. d. fats. ____ 29. At the G2 checkpoint, DNA replication is checked by a. receptor proteins. c. repair enzymes. b. electron transport chains. d. cell-surface markers. ____ 30. The cell cycle is monitored as each cell passes through a. the S phase. c. the interphase checkpoint. b. checkpoints. d. cytokinesis. ____ 31. Normal cells become cancer cells when a. regulation of cell growth and division occurs. b. cells respond to control mechanisms. c. cells pass through G1. d. cells do not respond to checkpoints. CELL GROWTH AND DIVISION Answer Section MULTIPLE CHOICE 1. ANS: D PTS: 1 DIF: III OBJ: 10.1.1 2. ANS: B PTS: 1 DIF: I OBJ: 10.1.2 3. ANS: B PTS: 1 DIF: I OBJ: 10.1.2 4. ANS: C PTS: 1 DIF: I OBJ: 10.1.2 5. ANS: D PTS: 1 DIF: II OBJ: 10.1.2 6. ANS: C PTS: 1 DIF: II OBJ: 10.1.2 7. ANS: C PTS: 1 DIF: II OBJ: 10.1.3 8. ANS: A PTS: 1 DIF: I OBJ: 10.2.1 9. ANS: C PTS: 1 DIF: II OBJ: 10.2.1 10. ANS: C PTS: 1 DIF: II OBJ: 10.2.1 11. ANS: C PTS: 1 DIF: II OBJ: 10.2.1 12. ANS: A PTS: 1 DIF: II OBJ: 10.2.1 13. ANS: D PTS: 1 DIF: III OBJ: 10.2.1 | 10.2.2 14. ANS: D PTS: 1 DIF: II OBJ: 10.2.1 15. ANS: D PTS: 1 DIF: III OBJ: 10.2.1 16. ANS: B PTS: 1 DIF: III OBJ: 10.2.1 | 10.2.2 17. ANS: C PTS: 1 DIF: I OBJ: 10.2.1 | 10.2.2 18. ANS: A PTS: 1 DIF: II OBJ: 10.2.2 19. ANS: B PTS: 1 DIF: I OBJ: 10.2.2 20. ANS: C PTS: 1 DIF: II OBJ: 10.2.2 21. ANS: B PTS: 1 DIF: II OBJ: 10.2.2 22. ANS: B PTS: 1 DIF: II OBJ: 10.2.2 23. ANS: B PTS: 1 DIF: III OBJ: 10.2.2 24. ANS: A PTS: 1 DIF: III OBJ: 10.2.2 25. ANS: B PTS: 1 DIF: II OBJ: 10.2.3 26. ANS: B PTS: 1 DIF: II OBJ: 10.2.3 27. ANS: D PTS: 1 DIF: II OBJ: 10.2.3 28. ANS: A PTS: 1 DIF: II OBJ: 10.3.1 29. ANS: C PTS: 1 DIF: II OBJ: 10.3.2 30. ANS: B PTS: 1 DIF: II OBJ: 10.3.2 31. ANS: D PTS: 1 DIF: II OBJ: 10.3.3